Synonyms
Elatine paludosa var. hexandra (Lapierre) Willk.
Elatine paludosa subsp. hexandra (Lapierre) Bonnier
Elatine hexandra subvar. pedunculata Coss. & Germ.
Elatine hydropiper var. hexandra (DC.) Gaudin
Elatine paludosa Seub.
Tillaea hexandra Lapierre
Hydropiper hexandrum (Lapierre) Fourr.
Elatine hexandra var. pedunculata (Coss. & Germ.) Rouy & Foucaud
Elatine tripetala Sm.
Potamopitys hexandra (Lapierre) Kuntze